<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title></title>
    <script src="js/browser.js" charset="utf-8"></script>
    <script type="text/babel">
    class Person{
      constructor(){
        alert('abc');
      }

      show(){

      }
    }

    var p=new Person();
    </script>
  </head>
  <body>

  </body>
</html>
